THE FRESH-WATER LOCHS OF SCOTLAND. 
147 
quite choked with animals. A single dip of the net, by which about 
half a gallon of water would be strained, collected enough material to 
fill a 2-oz. bottle. The Da'plvnia was of two forms, one small and the 
other much larger than usual, and many males were seen. There was 
little else in the loch, only Bia'ptomus (hyaline) and a species of 
AnahcBna being at all plentiful. 
Monk Myre. — NotJiolca longispina formed a Wasserblut here, 
giving the collection a reddish colour. Diaptomus (grey or hyaline), 
Bosmina cornuta, and Polyphemus were common. 
